Hello aspirant,

Here i am providing details best books for Zoology

1.Modern text book of Zoology      kotpal

2.Ecology and Environment   P.D sharma

3.Integrated principle of Zoology   Helen

4.A dictionary  of Zoology

5.The selfish gene   Richard

Introduction to Veterinary Anatomy and Physiology Textbook by Victoria Aspinall and Melanie Cappello. this is best book.

I hope this information may helps you,

ALL THE BEST!!!